backend developer English-speaking jobs in Sosnowiec

Polish-speaking Technical Writer needed to create and maintain documentation for banking and regulatory reporting products. Responsibilities include writing, editing, and reviewing technical content, ensuring accuracy and consistency, and collaborating with product teams. Requires 2+ years of experience in technical writing, strong Polish and English language skills, and the ability to explain complex technical concepts clearly.

The TikTok Shop Lead (Poland) will launch, grow, and scale SharkNinja's TikTok Shop business in the Polish market. Responsibilities include developing and executing TikTok campaigns, managing P&L, and building relationships with creators and affiliates.

AR Accountant responsible for daily bank statement booking, posting receivables documents, resolving cash allocation discrepancies, and implementing process improvements. Requires 2+ years of accounting experience, strong English communication skills, and proficiency in Excel.

Provides analytical support to European and UK store teams, producing operational targets, variance analysis, and ad-hoc reports.

This DevOps Engineer role focuses on building and maintaining tools and frameworks to support the development of enterprise-grade mobile, desktop, and web products. Responsibilities include collaborating with product engineering teams, investigating and resolving development process pain points, and leveraging AI-assisted tooling to improve efficiency.

Chief / Senior Accountant needed for Polish legal entity. Manage all accounting operations, ensure compliance with Polish Accounting Act and tax requirements, and prepare financial statements. Requires Master's degree in accounting/finance, 3-4 years experience as Chief Accountant, and fluency in Polish and English.

Junior Telecommunications Engineer needed for installation, commissioning, and integration of network equipment. Requires knowledge of telecommunications technologies such as Core Networks, Wireless, IP networks, and Transmission networks. Must be fluent in English and Polish.

Technical Adoption Specialist to support medium and large enterprise customers worldwide. Expert knowledge of Autodesk Civil 3D and AutoCAD required. Fluency in English and German is essential. Deliver coaching sessions, act as a technical advisor, and develop digital content to drive product adoption.

Accounts Payable Intern to handle processes for 14 markets, maintain supplier requests, reconcile statements, and assist with account reconciliation. Requires a degree in Economics or current studies, proficiency in Excel, teamwork skills, and fluency in English and German.

Technical Project Manager will bridge Product Development and the Product Introduction Factory, driving industrialization of new products and implementing assembly technologies.

Develop and execute drawing and model plans for heat exchanger components. Perform mechanical testing and collaborate with design, manufacturing, and R&D teams. Support production teams in implementing new developments and optimizing processes.

Designs Azure cloud architecture for large-scale data and analytics platforms. Architects end-to-end infrastructure and automation pipelines on Azure. Guides engineering teams in cloud and data best practices.

Administrative Coordinator to manage a global team of freelancers, ensuring timely completion of data collection and annotation tasks. Support project operations and communication across time zones.

Experienced Trade Project Manager needed for a complex, cross-border transformation program. Lead end-to-end delivery of trade application migration and decommissioning activities, ensuring minimal disruption to trading, risk, and operational processes. Strong Trade domain expertise and understanding of Finance and Markets operations required.

IT Equipment Storeman needed for asset management in a modern IT environment. Responsibilities include handling, labeling, registering, and transporting IT equipment. Requires 4+ years of experience, including 2+ years in a similar role, knowledge of IT equipment, and proficiency in MS Excel. Must have a valid driving license (category B) and be physically fit.

Senior Software Engineer will design and build scalable web applications using Next.js, React, and TypeScript. Responsibilities include end-to-end development, performance optimization, and collaboration with cross-functional teams.

Senior Tax Analyst will coordinate and provide financial information for tax return compilation. Responsibilities include supporting tax audits, ensuring compliance, and preparing tax-related reports. Requires a Master's degree, 5+ years of tax compliance experience, and proficiency in Polish accounting principles and taxes.

Responsible Person for maintaining a Quality System based on GDP principles and Corporate Quality standards for medicinal products and medical devices. Manages distribution activities, batch release, complaints, and regulatory compliance. Leads audits, CAPA, and recall operations. Requires a Pharmacy degree and 5 years' experience managing a Quality System in a similar role.

Finance intern to support the Finance Department with report preparation, document management, and project assistance. Must have analytical and communication skills, proficiency in Microsoft Office, and intermediate English.

Sales specialist with Portuguese (B2+/C1) and English (B2) fluency required. Develops accounts, negotiates deals, and builds relationships with decision makers. 1+ year sales experience and a solution-oriented mindset are needed.